🚀 go-pugleaf

I recently installed an RLL disk/contoller as a secondary disk subsystem
in a machine that has an IDE drive as its primary drive.  The installation
went well and the results are fine except when I use PC Tools DiskFix
I get the message "diagnostic track bad or missing."  I have not heard
the term diagnostic track before but I'm guessing it's the place where
bad track information is permanently stored.  Since my RLL controller
permits entry of bad tracks during LL format, I decided to enter the LL
format routine through debug and re-enter all the bad tracks that were
listed on the quality assurance sheet that came with the drive.  Of course,
after that I used fdisk and DOS format to create a viable D: drive but
DiskFix still complains about the diagnostic track.  BTW, without explan-
ation, Spinrite refused to do its low level format and optimization on
this disk (DiskFix and Spinrite look very similar - is Gibson Research
the common supplier?)

I'm wondering what might be broken here.  My controller is a Seagate
ST-22R.  Is it creating a diagnostic track that is unacceptable, or for
that matter, is my assumption about the diagnostic track wrong?  Note
that if I hadn't used PC Tools or Spinrite on this drive, I would
probably not think anything was wrong with it.  I sent a fax to PC Tools
technical support but they have not responded so I am seeking the wisdom
of the net.  Thanks.

Roger Levy